Wintrust Financial Corporation is a financial holding company that provides banking and other financial services to individuals and businesses in the Chicago metropolitan area and southern Wisconsin. The company operates through three business segments: community banking, specialty finance, and wealth management. Wintrust offers a range of banking products and services, including checking and savings accounts, loans, mortgages, and credit cards. The company also provides insurance, leasing, and treasury management services. Wintrust has a strong commitment to community involvement and has donated millions of dollars to local charities and non-profit organizations.